New research points to more dust particles in the atmosphere than previously believed.

The impacts of the Antarctic ozone hole extend upward as well as downward, according to a new modeling study from a team of NCAR scientists.

A team of scientists is tackling a scenario that is the stuff of Hollywood thrillers: What happens if a medium-sized asteroid strikes Earth? In particular, what if it crashes into the ocean? The question is not fanciful.

Deciduous plants absorb about a third more of a common class of air polluting chemicals than previously realized.

The wildfire that erupted in the foothills west of Boulder in September 2010 sent a thick plume of smoke right over NCAR’s chemistry labs. Even as their offices smelled of smoke, scientists took measurements from the roof.